COP and Superheat - does is it help?

[Chef]

look for the program coolpack it is from denmark, here you can make calcs with sh and cop.

Interesting as coolpack shows an increase in COP with increasing SH.

Lets take some extreme values and have condensing at 35C and the evaporator at -10C so now we add 50C superheat and get an improvement in the COP.

This means the evaporator is at 40C (thats +40C) which makes little sense. Not sure how they calculate the various states but in reality that cant possibly be true so just for fun I tried 100C superheat and my COP went up yet again.

So coolpack does an energy balance and does not consider what the physical conditions in the freezer are, it is up to the user to change the evaporator temperature to allow realistic SH realisation.

Bottom line is it has not solved the dilema.

Chef